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Shell by iosalcido is a document available to read on EtoBox.

What is Shell about?

The document discusses new API categories for heavy-duty diesel engine oil specifications called CK-4 and FA-4. CK-4 oils will replace current oils and be backwards compatible, while FA-4 oils will have lower viscosity for improved fuel economy. The new categories include more stringent tests for shear stability, oxidation resistance, and aeration control to protect modern high-temperature engines.

Author

iosalcido

Language

EN